Install assemble and secure ductwork and fittings using hand and power tools. Read and interpret blueprints construction drawings and job specifications. Cut and shape sheet metal to required sizes and angles. Measure mark and layout duct routes based on building structure and HVAC plans. Install hangers brackets and supports to secure ducts in place. Seal joints with mastic tape or sealant to ensure air-tight connections. Coordinate with HVAC technicians and other trades on-site. Maintain a clean and organized work area and ensure job site safety. Follow company OSHA and local safety guidelines at all times.